US20080269638A1 - Medical Instrument - Google Patents

Medical Instrument Download PDF

Info

Publication number
US20080269638A1
US20080269638A1 US12/166,099 US16609908A US2008269638A1 US 20080269638 A1 US20080269638 A1 US 20080269638A1 US 16609908 A US16609908 A US 16609908A US 2008269638 A1 US2008269638 A1 US 2008269638A1
Authority
US
United States
Prior art keywords
stylet
instrument
housing
block
cannula
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US12/166,099
Other versions
US8137288B2 (en
Inventor
David Cooke
Hanspeter Robert Bayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boston Scientific Scimed Inc
Original Assignee
Boston Scientific Scimed Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/300,512 external-priority patent/US7008382B2/en
Priority claimed from US10/855,248 external-priority patent/US20050277845A1/en
Application filed by Boston Scientific Scimed Inc filed Critical Boston Scientific Scimed Inc
Priority to US12/166,099 priority Critical patent/US8137288B2/en
Assigned to BOSTON SCIENTIFIC SCIMED, INC. reassignment BOSTON SCIENTIFIC SCIMED, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAYER, HANSPETER ROBERT, COOKE, DAVID
Publication of US20080269638A1 publication Critical patent/US20080269638A1/en
Application granted granted Critical
Publication of US8137288B2 publication Critical patent/US8137288B2/en
Adjusted expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/0266Pointed or sharp biopsy instruments means for severing sample
    • A61B10/0275Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B2010/0208Biopsy devices with actuators, e.g. with triggered spring mechanisms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03Automatic limiting or abutting means, e.g. for safety
    • A61B2090/033Abutting means, stops, e.g. abutting on tissue or skin
    • A61B2090/034Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself

Definitions

  • the invention relates to medical instruments, such as a biopsy needle instrument.
  • a biopsy needle instrument can be used to obtain a tissue specimen for microscopic examination, e.g., to determine malignancy, while preferably subjecting the patient to the least trauma.
  • such instruments can have of a long, thin probe, called a stylet, within a close-fitting hollow needle, called a cannula.
  • the stylet has a notch into which tissue can prolapse when the stylet enters the tissue.
  • a firing device first projects the stylet into tissue, followed immediately by the cannula. As the cannula slides over the stylet, the cannula severs tissue that has prolapsed into the notch of the stylet from the surrounding mass, and captures the prolapsed tissue as a specimen within the notch. The instrument can then be withdrawn and the piece of tissue removed from the stylet.
  • the invention relates to medical instruments, such as a biopsy needle instrument.
  • the stylet when a biopsy needle instrument is fired to propel a stylet, the stylet can rebound or kick back at the end of its travel. This kick back can reduce the accuracy of the instrument.
  • the invention features a medical instrument having reduced kick back of the stylet.
  • the invention features a medical instrument, including a housing, a stylet having a portion in the housing, a movable first member in the housing, the movable member being connected to the stylet, and a second member located in the housing to reduce movement of the first member, the second member configured to change movement of the first member from a first direction to a second direction different than the first direction.
  • Embodiments may include one or more of the following features.
  • the second member includes a raised portion configured to contact the movable first member.
  • the raised portion is off-centered relative to a longitudinal axis of the instrument.
  • the housing includes a recessed portion capable of accommodating a portion of the movable first member.
  • the relief portion is on a side wall of the housing.
  • the instrument further includes a cannula having a portion in the housing, and a movable third member connected to the cannula, wherein the second member is between the first member and the third member.
  • the instrument further includes a pivotable latch capable of holding and releasing the movable third member.
  • the instrument further includes a pivotable latch capable of holding and releasing the movable first member.
  • the instrument further includes a first trigger capable of engaging the pivotable latch to release the movable first member.
  • the instrument further includes a second trigger capable of engaging the pivotable latch to release the movable first member.
  • the first trigger is located at a distal end of the housing.
  • the first trigger is located between a distal end and a proximal end of the housing.
  • the invention features a medical instrument, including a housing, a movable stylet block in the housing, a stylet connected to the stylet block, a movable cannula block in the housing, a cannula connected to the cannula block, and a stop between the stylet block and the cannula block, the stop configured to contact the stylet block off-centered relative to a center longitudinal axis of the medical instrument.
  • Embodiments may include one or more of the following features.
  • the stop includes a raised portion configured to contact the stylet block off-centered.
  • the housing includes a recessed portion configured to accommodate a portion of the stylet block.
  • the instrument further includes a pivotable latch capable of holding and releasing the cannula block.
  • the instrument further includes a pivotable latch capable of holding and releasing the stylet block.
  • the instrument further includes two triggers, either trigger capable of pivoting the latch to release the stylet block.
  • the invention features a method of operating a medical instrument.
  • the method can include moving a first member connected to a stylet from a retracted position to an extended position, and changing the direction of movement of the first member from a first direction to a second direction.
  • Embodiments may include one or more of the following features.
  • Changing the direction of movement of the first member includes rotating the first member.
  • the method includes rotating the first member relative to an axial axis of the medical instrument.
  • Changing the movement of the first member includes contacting the first member against a portion of the medical instrument off-centered relative to a longitudinal axis of the medical instrument.
  • the method further includes stopping the movement of the first member. Movement of the first member is stopped and changed substantially simultaneously.
  • the method further includes moving a portion of the first member towards a recessed portion of the medical instrument.
  • the method further includes pivoting a latch holding a cannula in a retracted position to release the cannula.
  • the method further includes activating a trigger at a distal end of the medical instrument to move the first member.
  • the method further includes activating a trigger between the distal end and the proximal end of the medical instrument to move the first member. Activating the trigger pivotally releases a latch holding the first member in the retracted position.
  • the invention features a method of operating a medical instrument, including moving a first member connected to a stylet, and contacting the first member against a second member located off-centered relative to a longitudinal axis of the instrument.
  • the method can further include moving a portion of the first member into a recessed portion of the instrument.
  • the method can further include rotating the first member.
  • FIG. 1 is a perspective view of a biopsy needle instrument.
  • FIGS. 2A , 2 B, 2 C, 2 D, and 2 E are exploded, perspective views of the instrument of FIG. 1 , at various stages of assembly.
  • FIG. 3 is a perspective view of a portion of a housing of the instrument of FIG. 1 .
  • FIG. 4 is a perspective top view of a stylet block of the instrument of FIG. 1 .
  • FIG. 5 is a perspective view of a portion of the stylet block and the housing of the instrument of FIG. 1 .
  • a needle biopsy device 10 includes a housing 12 , a stylet 14 , and a cannula 16 coaxially receiving the stylet.
  • Housing 12 includes a top shell 18 and a bottom shell 20 configured to mate together to form the housing.
  • stylet 14 is configured to penetrate tissue and includes a cupped notch 24 configured to collect a tissue sample.
  • cannula 16 is configured to sever tissue that has prolapsed into notch 24 .
  • Both stylet 14 and cannula 16 extend proximally toward housing 12 and have portions inside the housing 12 . Stylet 14 and cannula 16 can be moved between retracted positions and extended positions.
  • stylet 14 and cannula 16 are loaded or cocked to their retracted positions, ready to be triggered, by moving a load button 28 proximally.
  • stylet 14 and cannula 16 are fired, they rapidly move distally to their extended positions, e.g., to collect a tissue specimen that has prolapsed into notch 24 of the stylet.
  • stylet 14 and cannula 16 are connected to a movable stylet block 30 and a movable cannula block 32 , respectively.
  • Stylet block 30 is configured to be movable to a retracted position, where the stylet block can be held, and subsequently, selectively released.
  • Stylet block 30 includes a post 34 configured to engage with a loading mechanism 36 .
  • Loading mechanism 36 includes a slidable member 38 slidably received on a platform 40 that rests on stylet block 30 and cannula block 32 ( FIG. 2B ).
  • Slidable member 38 includes a projection 42 configured to attach to (e.g., snap in with) load button 28 , and a notch 44 configured to engage with post 34 of stylet block 30 .
  • notch 44 engages with post 34 to move stylet block 30 (and connected stylet 14 ) proximally to their retracted positions where they can be held by a stylet latch 46 .
  • Stylet latch 46 is configured to hold stylet block 30 in a retracted position, and to release the stylet block selectively.
  • Stylet latch 46 includes a distal component 48 and a proximal component 50 .
  • Distal component 48 includes a side trigger 52 , a pivot 54 , and a wedge-shaped portion 56 .
  • distal component 48 has an angled surface 57 that engages with the distal end of proximal component 50 , as described below.
  • Portion 56 is configured to allow stylet block 30 to slide to its retracted position, and thereafter, to engage with the stylet block (at the proximal face of the stylet block) to hold the stylet block in its retracted position.
  • Side trigger 52 is located on the outside of housing 12 when device 10 is fully assembled.
  • distal component 48 pivots about pivot 54 (arrow A), which moves wedge-shaped portion 56 out of engagement with stylet block 30 .
  • stylet block 30 is capable of moving distally under the spring force of a stylet spring 58 .
  • stylet block 30 can be moved out of engagement with wedge-shaped portion 56 by operating proximal component 50 of stylet latch 46 .
  • the area of distal component 48 near pivot 54 is formed relatively thick to provide good stiffness, and the area of the distal component at side trigger 52 is formed relatively thin to allow the distal component to flex as well as to provide clearance with other components in device 10 as the side is pushed in.
  • the angled portion between pivot 54 and side trigger 52 provides a quick transition from the thick area to the thin area.
  • the angled distal end of distal component 48 helps to keep side trigger 52 positioned outside of housing 12 .
  • Proximal component 50 includes a rear trigger 60 , and an angled surface 62 at the distal end of the proximal component.
  • angled surface 62 engages with (e.g., rides on) angled surface 57 of distal component 48 , thereby causing distal component 48 to pivot about pivot 54 (arrow A) and moving wedge-shaped portion 56 out of engagement with stylet block 30 (arrow E, FIG. 2D ).
  • stylet block 30 can be fired by pushing either side trigger 52 or rear trigger 60 .
  • bottom shell 20 of housing 12 includes a stop member 64 located between stylet block 30 and cannula block 32 .
  • bottom shell 20 includes a rib or a raised portion 66 located off-center relative to the center longitudinal axis (L) of device 10 .
  • rib 66 is formed at a lower corner of stop member 64 (e.g., by molding), but in other embodiments, the rib can be formed anywhere off-center of longitudinal axis L.
  • Rib 66 is high enough for stylet block 30 to contact when the stylet block reaches its end point of travel.
  • bottom shell 20 further includes a recessed portion or a relief 68 configured to accommodate a portion 70 of stylet block 30 (as shown, a rear corner).
  • stylet block 30 is propelled distally toward stop member 64 .
  • Stylet block 30 then strikes rib 66 , which causes the stylet block to rotate or to deflect (arrow B, FIG. 4 ).
  • first direction e.g., generally linearly and distally
  • second direction e.g., sideways
  • cannula block 32 is configured to be movable to a retracted position, where the cannula block can be held, and subsequently, selectively released.
  • Cannula block 32 includes a cannula post 72 configured to engage with slidable member 38 of loading mechanism 36 ( FIG. 2B ).
  • slidable member 38 engages with cannula post 72 to move cannula block 32 (and connected cannula 16 ) proximally to their retracted positions, where they can be held by a cannula latch 74 .
  • Cannula latch 74 is configured to hold cannula block 32 in a retracted position, and to selectively release the cannula block.
  • Cannula latch 74 includes two identical wedge-shaped portions 76 (only one of which is visible in FIG. 2E ) and a pivot 78 .
  • Wedge-shaped portions 76 are configured to allow cannula block 32 to slide to its retracted position, and thereafter, to engage with cannula block (at the proximal face of the cannula block) to hold the cannula block in its retracted position.
  • Pivot 78 allows cannula latch 74 to seesaw (arrow C) so that cannula block 32 can be moved to and locked in its retracted position, and subsequently released.
  • stylet block 30 When stylet block 30 is released from its retracted position and moves distally, the stylet block engages cannula latch 74 and pivots the cannula latch (arrow D). As a result, wedge-shaped portions 76 pivot out of engagement with and release cannula block 32 . Cannula block 32 is then capable of moving distally under the spring force of a cannula spring 80 .
  • Suitable stylet 14 and cannula 16 configurations are exemplified by the ASAPTM Automated Biopsy System having a Delta Cut® needle or a Channel Cut® needle (available from Boston Scientific Corp., Natick, Mass.), and described in Chu, U.S. Pat. No. 5,989,196, and commonly assigned U.S. Ser. No. 10/728,248, filed Dec. 4, 2003, hereby incorporated by reference.
  • the components of device 10 e.g., housing 12 , latches 46 and 74 , stylet block 30 , or cannula block 32 ) described above can be formed by injection molding techniques, e.g., of polycarbonate and/or ABS.
  • Stylet 14 , cannula 16 , and springs 58 and 80 can be formed of stainless steel.
  • cannula 16 and stylet 14 are loaded (e.g., moved proximally and retained in their retracted positions) and subsequently fired (e.g., released and propelled distally). More specifically, device 10 is loaded by moving load button 28 proximally, which moves cannula block 32 proximally via slidable member 38 and cannula post 72 . Cannula block 32 is moved proximally past wedge-shaped portions 76 , where the cannula block is held in its retracted position by portions 76 . Cannula spring 80 is compressed between stop member 64 and cannula block 32 .
  • Moving load button 28 further proximally moves stylet block 30 proximally via notch 44 of slidable member 38 and post 34 .
  • Stylet block 30 is moved proximally past wedge-shaped portion 56 , where the stylet block is held in its retracted position by portion 56 .
  • Stylet spring 58 is compressed between a portion of bottom shell 20 and stylet block 30 .
  • Device 10 is loaded and ready to be fired.
  • stylet block 30 is propelled distally by the spring force of stylet spring 58 , which allows the stylet to penetrate the targeted area, e.g., tissue.
  • Stylet block 30 then strikes rib 66 and rotates (arrow B, FIG. 4 ), which causes portion 70 of the stylet block to enter into recessed portion 68 of bottom shell 20 .
  • this deflection of stylet block 30 dissipates energy from stylet spring 58 , reduces rebound of the stylet block and enhances accuracy of the device.
  • stylet block 30 Substantially simultaneously with striking rib 66 , stylet block 30 also engages and pivots cannula latch 74 about pivot 78 (arrow D, FIG. 2E ). Pivoting cannula latch 74 disengages wedge-shaped portions 76 from cannula block 32 . Upon disengagement or release, cannula block 32 and cannula 16 are propelled distally by the spring force of cannula spring 80 , which allows the cannula to slide over stylet 14 and to sever a specimen that has prolapsed into notch 24 of the stylet.
  • Device 10 can then be withdrawn from the targeted area.
  • the specimen can be removed from notch 24 by first retracting cannula 16 and cannula block 32 proximally.
  • the specimen can be placed on a slide or in a preservative solution. If desired, stylet 14 can be retracted to load device 10 and to collect another specimen.
  • the features described above can be incorporated into other embodiments of needle biopsy devices.
  • Other embodiments of needle biopsy devices are described in commonly assigned U.S. Ser. No. 10/300,249, filed Nov. 20, 2002; U.S. Ser. No. 10/300,512, filed Nov. 20, 2002; and U.S. Ser. No. 10/728,248, filed Dec. 4, 2003, hereby incorporated by reference.
  • housing 12 can be made of different materials, e.g., to enhance the grip or “feel” of device 10 .
  • housing 12 can be formed of materials with different hardness, e.g., a core of relatively hard material and an outer layer of relatively soft material.
  • the outer layer can be a foamy material, such as a urethane, to enhance the grip and/or to absorb vibrations from the firing of device 10 .
  • Housing 12 can be formed with two or more different materials.
  • device 10 includes side portions 100 formed of different materials to enhance grip and comfort.
  • housing 12 includes an opening 102 that, together with stylet block 30 , can provide a visual indication that device 10 is loaded. More specifically, when stylet block 30 is loaded to its retracted position, the stylet block can be seen through opening 102 .
  • stylet block 30 is formed of a bright color, e.g., red, to enhance its visibility.

Abstract

Medical instruments and methods of using the instruments are described. In some embodiments, a medical instrument includes a housing, a stylet having a portion in the housing, a movable first member in the housing, the movable member being connected to the stylet, and a second member located in the housing to reduce movement of the first member. The second member is configured to change movement of the first member from a first direction to a second direction different than the first direction.

Description

    RELATED APPLICATIONS
  • This application is a continuation-in-part of U.S. application Ser. No. 10/855,248, filed May 27, 2004; and is a continuation-in-part to U.S. application Ser. No. 11/325,837, filed Jan. 4, 2006, which is a continuation of U.S. application Ser. No. 10/300,512, filed Nov. 20, 2002, now U.S. Pat. No. 7,008,382. All three prior applications are incorporated herein by reference in their entirety.
  • TECHNICAL FIELD
  • The invention relates to medical instruments, such as a biopsy needle instrument.
  • BACKGROUND
  • A biopsy needle instrument can be used to obtain a tissue specimen for microscopic examination, e.g., to determine malignancy, while preferably subjecting the patient to the least trauma. In some embodiments, such instruments can have of a long, thin probe, called a stylet, within a close-fitting hollow needle, called a cannula. The stylet has a notch into which tissue can prolapse when the stylet enters the tissue.
  • During use, a firing device first projects the stylet into tissue, followed immediately by the cannula. As the cannula slides over the stylet, the cannula severs tissue that has prolapsed into the notch of the stylet from the surrounding mass, and captures the prolapsed tissue as a specimen within the notch. The instrument can then be withdrawn and the piece of tissue removed from the stylet.
  • SUMMARY
  • The invention relates to medical instruments, such as a biopsy needle instrument.
  • In some circumstances, when a biopsy needle instrument is fired to propel a stylet, the stylet can rebound or kick back at the end of its travel. This kick back can reduce the accuracy of the instrument. In one aspect, the invention features a medical instrument having reduced kick back of the stylet.
  • In another aspect, the invention features a medical instrument, including a housing, a stylet having a portion in the housing, a movable first member in the housing, the movable member being connected to the stylet, and a second member located in the housing to reduce movement of the first member, the second member configured to change movement of the first member from a first direction to a second direction different than the first direction.
  • Embodiments may include one or more of the following features. The second member includes a raised portion configured to contact the movable first member. The raised portion is off-centered relative to a longitudinal axis of the instrument. The housing includes a recessed portion capable of accommodating a portion of the movable first member. The relief portion is on a side wall of the housing. The instrument further includes a cannula having a portion in the housing, and a movable third member connected to the cannula, wherein the second member is between the first member and the third member. The instrument further includes a pivotable latch capable of holding and releasing the movable third member. The instrument further includes a pivotable latch capable of holding and releasing the movable first member. The instrument further includes a first trigger capable of engaging the pivotable latch to release the movable first member. The instrument further includes a second trigger capable of engaging the pivotable latch to release the movable first member. The first trigger is located at a distal end of the housing. The first trigger is located between a distal end and a proximal end of the housing.
  • In another aspect, the invention features a medical instrument, including a housing, a movable stylet block in the housing, a stylet connected to the stylet block, a movable cannula block in the housing, a cannula connected to the cannula block, and a stop between the stylet block and the cannula block, the stop configured to contact the stylet block off-centered relative to a center longitudinal axis of the medical instrument.
  • Embodiments may include one or more of the following features. The stop includes a raised portion configured to contact the stylet block off-centered. The housing includes a recessed portion configured to accommodate a portion of the stylet block. The instrument further includes a pivotable latch capable of holding and releasing the cannula block. The instrument further includes a pivotable latch capable of holding and releasing the stylet block. The instrument further includes two triggers, either trigger capable of pivoting the latch to release the stylet block.
  • In another aspect, the invention features a method of operating a medical instrument. The method can include moving a first member connected to a stylet from a retracted position to an extended position, and changing the direction of movement of the first member from a first direction to a second direction.
  • Embodiments may include one or more of the following features. Changing the direction of movement of the first member includes rotating the first member. The method includes rotating the first member relative to an axial axis of the medical instrument. Changing the movement of the first member includes contacting the first member against a portion of the medical instrument off-centered relative to a longitudinal axis of the medical instrument. The method further includes stopping the movement of the first member. Movement of the first member is stopped and changed substantially simultaneously. The method further includes moving a portion of the first member towards a recessed portion of the medical instrument. The method further includes pivoting a latch holding a cannula in a retracted position to release the cannula. The method further includes activating a trigger at a distal end of the medical instrument to move the first member. Activating the trigger pivotally releases a latch holding the first member in the retracted position. The method further includes activating a trigger between the distal end and the proximal end of the medical instrument to move the first member. Activating the trigger pivotally releases a latch holding the first member in the retracted position.
  • In another aspect, the invention features a method of operating a medical instrument, including moving a first member connected to a stylet, and contacting the first member against a second member located off-centered relative to a longitudinal axis of the instrument. The method can further include moving a portion of the first member into a recessed portion of the instrument. The method can further include rotating the first member.
  • Other aspects, features, and advantages of the invention will be apparent from the description of the preferred embodiments thereof and from the claims.
  • DESCRIPTION OF DRAWINGS
  • FIG. 1 is a perspective view of a biopsy needle instrument.
  • FIGS. 2A, 2B, 2C, 2D, and 2E are exploded, perspective views of the instrument of FIG. 1, at various stages of assembly.
  • FIG. 3 is a perspective view of a portion of a housing of the instrument of FIG. 1.
  • FIG. 4 is a perspective top view of a stylet block of the instrument of FIG. 1.
  • FIG. 5 is a perspective view of a portion of the stylet block and the housing of the instrument of FIG. 1.
  • DETAILED DESCRIPTION
  • Referring to FIG. 1, a needle biopsy device 10 includes a housing 12, a stylet 14, and a cannula 16 coaxially receiving the stylet. Housing 12 includes a top shell 18 and a bottom shell 20 configured to mate together to form the housing. At its distal end 22, stylet 14 is configured to penetrate tissue and includes a cupped notch 24 configured to collect a tissue sample. At its distal end 26, cannula 16 is configured to sever tissue that has prolapsed into notch 24. Both stylet 14 and cannula 16 extend proximally toward housing 12 and have portions inside the housing 12. Stylet 14 and cannula 16 can be moved between retracted positions and extended positions. During use, stylet 14 and cannula 16 are loaded or cocked to their retracted positions, ready to be triggered, by moving a load button 28 proximally. When stylet 14 and cannula 16 are fired, they rapidly move distally to their extended positions, e.g., to collect a tissue specimen that has prolapsed into notch 24 of the stylet.
  • Referring to FIGS. 2A-2E, particularly to FIG. 2E, at their proximal ends, stylet 14 and cannula 16 are connected to a movable stylet block 30 and a movable cannula block 32, respectively. Stylet block 30 is configured to be movable to a retracted position, where the stylet block can be held, and subsequently, selectively released. Stylet block 30 includes a post 34 configured to engage with a loading mechanism 36. Loading mechanism 36 includes a slidable member 38 slidably received on a platform 40 that rests on stylet block 30 and cannula block 32 (FIG. 2B). Slidable member 38 includes a projection 42 configured to attach to (e.g., snap in with) load button 28, and a notch 44 configured to engage with post 34 of stylet block 30. Thus, as load button 28 is moved proximally, notch 44 engages with post 34 to move stylet block 30 (and connected stylet 14) proximally to their retracted positions where they can be held by a stylet latch 46.
  • Stylet latch 46 is configured to hold stylet block 30 in a retracted position, and to release the stylet block selectively. Stylet latch 46 includes a distal component 48 and a proximal component 50. Distal component 48 includes a side trigger 52, a pivot 54, and a wedge-shaped portion 56. At its proximal end, distal component 48 has an angled surface 57 that engages with the distal end of proximal component 50, as described below. Portion 56 is configured to allow stylet block 30 to slide to its retracted position, and thereafter, to engage with the stylet block (at the proximal face of the stylet block) to hold the stylet block in its retracted position. Side trigger 52 is located on the outside of housing 12 when device 10 is fully assembled. When side trigger 52 is pushed toward housing 12, distal component 48 pivots about pivot 54 (arrow A), which moves wedge-shaped portion 56 out of engagement with stylet block 30. When released from portion 56, stylet block 30 is capable of moving distally under the spring force of a stylet spring 58. Alternatively, stylet block 30 can be moved out of engagement with wedge-shaped portion 56 by operating proximal component 50 of stylet latch 46. As shown, the area of distal component 48 near pivot 54 is formed relatively thick to provide good stiffness, and the area of the distal component at side trigger 52 is formed relatively thin to allow the distal component to flex as well as to provide clearance with other components in device 10 as the side is pushed in. The angled portion between pivot 54 and side trigger 52 provides a quick transition from the thick area to the thin area. The angled distal end of distal component 48 helps to keep side trigger 52 positioned outside of housing 12.
  • Proximal component 50 includes a rear trigger 60, and an angled surface 62 at the distal end of the proximal component. When rear trigger 60 is pushed proximally, angled surface 62 engages with (e.g., rides on) angled surface 57 of distal component 48, thereby causing distal component 48 to pivot about pivot 54 (arrow A) and moving wedge-shaped portion 56 out of engagement with stylet block 30 (arrow E, FIG. 2D). Thus, stylet block 30 can be fired by pushing either side trigger 52 or rear trigger 60.
  • After stylet block 30 is fired, device 10 is configured to stop and to deflect the movement of the stylet block. Referring further to FIGS. 3, 4, and 5, bottom shell 20 of housing 12 includes a stop member 64 located between stylet block 30 and cannula block 32. On the proximal side of stop member 64, bottom shell 20 includes a rib or a raised portion 66 located off-center relative to the center longitudinal axis (L) of device 10. As shown, rib 66 is formed at a lower corner of stop member 64 (e.g., by molding), but in other embodiments, the rib can be formed anywhere off-center of longitudinal axis L. Rib 66 is high enough for stylet block 30 to contact when the stylet block reaches its end point of travel. Referring particularly to FIG. 5, bottom shell 20 further includes a recessed portion or a relief 68 configured to accommodate a portion 70 of stylet block 30 (as shown, a rear corner).
  • During use, after side trigger 52 or rear trigger 60 is activated, stylet block 30 is propelled distally toward stop member 64. Stylet block 30 then strikes rib 66, which causes the stylet block to rotate or to deflect (arrow B, FIG. 4). In other words, when stylet block 30 strikes rib 66, the movement of the stylet block is changed from a first direction (e.g., generally linearly and distally) to a second direction (e.g., sideways). It is believed that the deflection can also slightly misalign cannula 16 and stylet 14 to create friction to dissipate energy that may otherwise create kickback. No kinetic energy is believed to be dissipated until the end of the travel of stylet block 30, such that the speed of stylet 14 during travel is enhanced (e.g., maximized) and the energy that is dissipated at the end of travel is excess energy. Rotation of stylet block 30 also moves portion 70 of the stylet block into recessed portion 68. As a result, stylet block 30 is prevented from hitting stop member 64 and rebounding or kicking back, which can cause inaccurate sampling of tissue.
  • Referring particularly to FIG. 2E, cannula block 32 is configured to be movable to a retracted position, where the cannula block can be held, and subsequently, selectively released. Cannula block 32 includes a cannula post 72 configured to engage with slidable member 38 of loading mechanism 36 (FIG. 2B). As load button 28 is moved proximally, slidable member 38 engages with cannula post 72 to move cannula block 32 (and connected cannula 16) proximally to their retracted positions, where they can be held by a cannula latch 74.
  • Cannula latch 74 is configured to hold cannula block 32 in a retracted position, and to selectively release the cannula block. Cannula latch 74 includes two identical wedge-shaped portions 76 (only one of which is visible in FIG. 2E) and a pivot 78. Wedge-shaped portions 76 are configured to allow cannula block 32 to slide to its retracted position, and thereafter, to engage with cannula block (at the proximal face of the cannula block) to hold the cannula block in its retracted position. Pivot 78 allows cannula latch 74 to seesaw (arrow C) so that cannula block 32 can be moved to and locked in its retracted position, and subsequently released. During use, when stylet block 30 is released from its retracted position and moves distally, the stylet block engages cannula latch 74 and pivots the cannula latch (arrow D). As a result, wedge-shaped portions 76 pivot out of engagement with and release cannula block 32. Cannula block 32 is then capable of moving distally under the spring force of a cannula spring 80.
  • Examples of suitable stylet 14 and cannula 16 configurations are exemplified by the ASAP™ Automated Biopsy System having a Delta Cut® needle or a Channel Cut® needle (available from Boston Scientific Corp., Natick, Mass.), and described in Chu, U.S. Pat. No. 5,989,196, and commonly assigned U.S. Ser. No. 10/728,248, filed Dec. 4, 2003, hereby incorporated by reference.
  • The components of device 10 (e.g., housing 12, latches 46 and 74, stylet block 30, or cannula block 32) described above can be formed by injection molding techniques, e.g., of polycarbonate and/or ABS. Stylet 14, cannula 16, and springs 58 and 80 can be formed of stainless steel.
  • In operation, cannula 16 and stylet 14 are loaded (e.g., moved proximally and retained in their retracted positions) and subsequently fired (e.g., released and propelled distally). More specifically, device 10 is loaded by moving load button 28 proximally, which moves cannula block 32 proximally via slidable member 38 and cannula post 72. Cannula block 32 is moved proximally past wedge-shaped portions 76, where the cannula block is held in its retracted position by portions 76. Cannula spring 80 is compressed between stop member 64 and cannula block 32. Moving load button 28 further proximally moves stylet block 30 proximally via notch 44 of slidable member 38 and post 34. Stylet block 30 is moved proximally past wedge-shaped portion 56, where the stylet block is held in its retracted position by portion 56. Stylet spring 58 is compressed between a portion of bottom shell 20 and stylet block 30. Device 10 is loaded and ready to be fired.
  • To fire device 10, distal end 22 of stylet 14 is placed adjacent to a target area, and either side trigger 52 or rear trigger 60 is actuated. For example, actuating side trigger 52 causes stylet latch 46 to pivot about pivot 54 (arrow E, FIG. 2D), thereby moving wedge-shaped portion 56 out of engagement with stylet block 30 and releasing the stylet block. Upon disengagement, stylet block 30 and stylet 14 are propelled distally by the spring force of stylet spring 58, which allows the stylet to penetrate the targeted area, e.g., tissue. Stylet block 30 then strikes rib 66 and rotates (arrow B, FIG. 4), which causes portion 70 of the stylet block to enter into recessed portion 68 of bottom shell 20. As discussed above, this deflection of stylet block 30 dissipates energy from stylet spring 58, reduces rebound of the stylet block and enhances accuracy of the device.
  • Substantially simultaneously with striking rib 66, stylet block 30 also engages and pivots cannula latch 74 about pivot 78 (arrow D, FIG. 2E). Pivoting cannula latch 74 disengages wedge-shaped portions 76 from cannula block 32. Upon disengagement or release, cannula block 32 and cannula 16 are propelled distally by the spring force of cannula spring 80, which allows the cannula to slide over stylet 14 and to sever a specimen that has prolapsed into notch 24 of the stylet.
  • Device 10 can then be withdrawn from the targeted area. The specimen can be removed from notch 24 by first retracting cannula 16 and cannula block 32 proximally. The specimen can be placed on a slide or in a preservative solution. If desired, stylet 14 can be retracted to load device 10 and to collect another specimen.
  • In other embodiments, the features described above, such as rib 66 and/or recessed portion 68, can be incorporated into other embodiments of needle biopsy devices. Other embodiments of needle biopsy devices are described in commonly assigned U.S. Ser. No. 10/300,249, filed Nov. 20, 2002; U.S. Ser. No. 10/300,512, filed Nov. 20, 2002; and U.S. Ser. No. 10/728,248, filed Dec. 4, 2003, hereby incorporated by reference.
  • In some embodiments, housing 12 can be made of different materials, e.g., to enhance the grip or “feel” of device 10. For example, housing 12 can be formed of materials with different hardness, e.g., a core of relatively hard material and an outer layer of relatively soft material. The outer layer can be a foamy material, such as a urethane, to enhance the grip and/or to absorb vibrations from the firing of device 10. Housing 12 can be formed with two or more different materials. For example, as shown in FIG. 1, device 10 includes side portions 100 formed of different materials to enhance grip and comfort.
  • In other embodiments, referring to FIG. 1, housing 12 includes an opening 102 that, together with stylet block 30, can provide a visual indication that device 10 is loaded. More specifically, when stylet block 30 is loaded to its retracted position, the stylet block can be seen through opening 102. In some embodiments, stylet block 30 is formed of a bright color, e.g., red, to enhance its visibility.
  • Terms such as “side”, “top” and “bottom” are used to describe embodiments as shown in the orientation of the figures and not intended to be limiting.
  • Other embodiments are within the claims.

Claims (19)

1. A medical instrument, comprising:
a housing;
a stylet having a portion in the housing;
a movable first member in the housing, the movable member being connected to the stylet;
a stop in contact with and extending a first distance from a bottom wall of the housing in a first direction; and
a second member located in the housing to change movement of the first member, the second member in contact with and extending a second distance from the bottom wall of the housing in the first direction, the second distance being less than the first distance, the second member configured to change movement of the first member from a substantially linear second direction to a third direction different than the second direction before the first member contacts the stop;
wherein the third direction includes a component transverse to the second direction.
2. The instrument of claim 1, wherein the second member comprises a raised portion configured to contact the movable first member.
3. The instrument of claim 2, wherein the raised portion is off-centered relative to a longitudinal axis of the instrument.
4. The instrument of claim 1, wherein the housing comprises a recessed portion capable of accommodating a portion of the movable first member.
5. The instrument of claim 4, wherein the recessed portion is on a side wall of the housing.
6. The instrument of claim 1, further comprising a cannula having a portion in the housing, and a movable third member connected to the cannula, wherein the second member is between the first member and the third member.
7. The instrument of claim 6, further comprising a pivotable latch capable of holding and releasing the movable third member.
8. The instrument of claim 1, further comprising a pivotable latch capable of holding and releasing the movable first member.
9. The instrument of claim 8, further comprising a first trigger capable of engaging the pivotable latch to release the movable first member.
10. The instrument of claim 9, further comprising a second trigger capable of engaging the pivotable latch to release the movable first member.
11. The instrument of claim 9, wherein the first trigger is located at a distal end of the housing.
12. The instrument of claim 9, wherein the first trigger is located between a distal end and a proximal end of the housing.
13. A medical instrument, comprising:
a housing;
a movable stylet block in the housing;
a stylet connected to the stylet block;
a movable cannula block in the housing;
a cannula connected to the cannula block; and
a stop between the stylet block and the cannula block, the stop having a substantially planar first portion and second portion extending axially away from the first portion towards the stylet block, the second portion spaced apart from the stylet.
14. The instrument of claim 13, wherein the stop is configured such that the stylet block sequentially contacts the second portion of the stop then the first portion of the stop.
15. The instrument of claim 13, wherein the first portion of the stop is in contact with and extends a first distance from a wall of the housing in a first direction and the second portion of the stop is in contact with and extends a second distance from the wall of the housing in the first direction, the second distance being less than the first distance.
16. The instrument of claim 13, wherein the housing comprises a recessed portion configured to accommodate a portion of the stylet block.
17. The instrument of claim 13, further comprising a pivotable latch capable of holding and releasing the cannula block.
18. The instrument of claim 13, further comprising a pivotable latch capable of holding and releasing the stylet block.
19. The instrument of claim 18, further comprising two triggers, either trigger capable of pivoting the latch to release the stylet block.
US12/166,099 2002-11-20 2008-07-01 Medical instrument Expired - Lifetime US8137288B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/166,099 US8137288B2 (en) 2002-11-20 2008-07-01 Medical instrument

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/300,512 US7008382B2 (en) 2002-11-20 2002-11-20 Medical instrument
US10/855,248 US20050277845A1 (en) 2004-05-27 2004-05-27 Medical instrument
US11/325,837 US7449000B2 (en) 2002-11-20 2006-01-04 Medical instrument
US12/166,099 US8137288B2 (en) 2002-11-20 2008-07-01 Medical instrument

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/855,248 Continuation-In-Part US20050277845A1 (en) 2002-11-20 2004-05-27 Medical instrument

Publications (2)

Publication Number Publication Date
US20080269638A1 true US20080269638A1 (en) 2008-10-30
US8137288B2 US8137288B2 (en) 2012-03-20

Family

ID=39887829

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/166,099 Expired - Lifetime US8137288B2 (en) 2002-11-20 2008-07-01 Medical instrument

Country Status (1)

Country Link
US (1) US8137288B2 (en)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080287825A1 (en) * 2007-05-14 2008-11-20 Boston Scientific Scimed, Inc. Biopsy Device
US20090069713A1 (en) * 2002-11-20 2009-03-12 Boston Scientific Scimed, Inc. Medical Instrument
US7819820B2 (en) 2003-11-17 2010-10-26 Bard Peripheral Vascular, Inc. Self contained, self piercing, side-expelling marking apparatus
US8052708B2 (en) 1999-06-17 2011-11-08 Bard Peripheral Vascular, Inc. Apparatus for the percutaneous marking of a lesion
US8064987B2 (en) 2006-10-23 2011-11-22 C. R. Bard, Inc. Breast marker
US8137288B2 (en) 2002-11-20 2012-03-20 Boston Scientific Scimed, Inc. Medical instrument
US8157862B2 (en) 1997-10-10 2012-04-17 Senorx, Inc. Tissue marking implant
US8177792B2 (en) 2002-06-17 2012-05-15 Senorx, Inc. Plugged tip delivery tube for marker placement
US8219182B2 (en) 1999-02-02 2012-07-10 Senorx, Inc. Cavity-filling biopsy site markers
US8224424B2 (en) 1999-02-02 2012-07-17 Senorx, Inc. Tissue site markers for in vivo imaging
US8311610B2 (en) 2008-01-31 2012-11-13 C. R. Bard, Inc. Biopsy tissue marker
US8361082B2 (en) 1999-02-02 2013-01-29 Senorx, Inc. Marker delivery device with releasable plug
US8401622B2 (en) 2006-12-18 2013-03-19 C. R. Bard, Inc. Biopsy marker with in situ-generated imaging properties
US8419656B2 (en) 2004-11-22 2013-04-16 Bard Peripheral Vascular, Inc. Post decompression marker introducer system
US8447386B2 (en) 2003-05-23 2013-05-21 Senorx, Inc. Marker or filler forming fluid
US8486028B2 (en) 2005-10-07 2013-07-16 Bard Peripheral Vascular, Inc. Tissue marking apparatus having drug-eluting tissue marker
US8498693B2 (en) 1999-02-02 2013-07-30 Senorx, Inc. Intracorporeal marker and marker delivery device
US8626269B2 (en) 2003-05-23 2014-01-07 Senorx, Inc. Fibrous marker and intracorporeal delivery thereof
US8634899B2 (en) 2003-11-17 2014-01-21 Bard Peripheral Vascular, Inc. Multi mode imaging marker
US8668737B2 (en) 1997-10-10 2014-03-11 Senorx, Inc. Tissue marking implant
US8670818B2 (en) 2008-12-30 2014-03-11 C. R. Bard, Inc. Marker delivery device for tissue marker placement
US8718745B2 (en) 2000-11-20 2014-05-06 Senorx, Inc. Tissue site markers for in vivo imaging
USD715442S1 (en) 2013-09-24 2014-10-14 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
USD715942S1 (en) 2013-09-24 2014-10-21 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
USD716451S1 (en) 2013-09-24 2014-10-28 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
USD716450S1 (en) 2013-09-24 2014-10-28 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
US9149341B2 (en) 1999-02-02 2015-10-06 Senorx, Inc Deployment of polysaccharide markers for treating a site within a patient
US9327061B2 (en) 2008-09-23 2016-05-03 Senorx, Inc. Porous bioabsorbable implant
US9579077B2 (en) 2006-12-12 2017-02-28 C.R. Bard, Inc. Multiple imaging mode tissue marker
US9820824B2 (en) 1999-02-02 2017-11-21 Senorx, Inc. Deployment of polysaccharide markers for treating a site within a patent
US20180256138A1 (en) * 2017-03-08 2018-09-13 Cyrillo Araujo Selectively extendable and retractable biopsy devices
US10342635B2 (en) 2005-04-20 2019-07-09 Bard Peripheral Vascular, Inc. Marking device with retractable cannula
US20220202400A1 (en) * 2020-12-30 2022-06-30 Medical Park Co., Ltd. Needle guide device for biopsy

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013348103B2 (en) 2012-11-21 2018-02-22 C.R. Bard, Inc. Core needle biopsy device

Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272414A (en) * 1978-05-26 1981-06-09 Monsanto Company Chemical retardants for forest fires
US4844064A (en) * 1987-09-30 1989-07-04 Baxter Travenol Laboratories, Inc. Surgical cutting instrument with end and side openings
US4924878A (en) * 1988-11-07 1990-05-15 Nottke James E Actuating mechanism for biopsy needle
US4953558A (en) * 1987-11-19 1990-09-04 C. R. Bard, Inc. Tissue sampling device
US5195533A (en) * 1992-05-08 1993-03-23 Boston Scientific Corporation Biopsy needle instrument for storing multiple specimens
US5368045A (en) * 1989-07-18 1994-11-29 Boston Scientific Corporation Biopsy needle instrument
US5476101A (en) * 1991-08-30 1995-12-19 M3 Systems Inc. Automatic tissue sampling apparatus
US5507298A (en) * 1994-09-23 1996-04-16 M3 Systems, Inc., D/B/A/ Manan Medical Products, Inc. Forward-fired automatic tissue sampling apparatus
US5660186A (en) * 1995-06-07 1997-08-26 Marshfield Clinic Spiral biopsy stylet
US5685852A (en) * 1992-03-30 1997-11-11 Symbiosis Corporation Needle assembly and methods useful for epidural anesthesia
US5718237A (en) * 1993-11-15 1998-02-17 Haaga; John R. Biopsy needle
US5779647A (en) * 1995-06-07 1998-07-14 Chau; Sonny Automated biopsy instruments
US5842999A (en) * 1996-07-31 1998-12-01 C.R. Bard, Inc. Automated tissue sampling device
US5989196A (en) * 1994-10-31 1999-11-23 Boston Scientific Corporation Biopsy needle
US6015391A (en) * 1998-10-06 2000-01-18 Medsol, Corp. Biopsy needle structure
US6033411A (en) * 1997-10-14 2000-03-07 Parallax Medical Inc. Precision depth guided instruments for use in vertebroplasty
US6050955A (en) * 1997-09-19 2000-04-18 United States Surgical Corporation Biopsy apparatus and method
US6086543A (en) * 1998-06-24 2000-07-11 Rubicor Medical, Inc. Fine needle and core biopsy devices and methods
US6126617A (en) * 1995-01-26 2000-10-03 Ascendia Ab Impact-damped biopsy instrument
US6142955A (en) * 1997-09-19 2000-11-07 United States Surgical Corporation Biopsy apparatus and method
US6165136A (en) * 1998-12-23 2000-12-26 Scimed Life Systems, Inc. Semi-automatic biopsy device and related method of use
US6221030B1 (en) * 1998-12-04 2001-04-24 Gallini S.R.L. Automatic biopsy device
US6293957B1 (en) * 1995-04-17 2001-09-25 Medtronic Xomed, Inc. Method of performing sinus surgery utilizing & sinus debrider instrument
US6428486B2 (en) * 1994-03-24 2002-08-06 Ethicon Endo-Surgery, Inc. Methods and devices for automated biopsy and collection of soft tissue
US6497706B1 (en) * 1998-03-03 2002-12-24 Senorx, Inc. Biopsy device and method of use
US6544192B2 (en) * 1998-02-25 2003-04-08 Respironics, Inc. Patient monitor and method of using same
US6620111B2 (en) * 2001-04-20 2003-09-16 Ethicon Endo-Surgery, Inc. Surgical biopsy device having automatic rotation of the probe for taking multiple samples
US6730045B2 (en) * 2001-06-22 2004-05-04 Richard Finer Biopsy needle for continuous sample removal
US6849080B2 (en) * 1998-09-03 2005-02-01 Rubicon Medical, Inc. Excisional biopsy device and methods
US7008382B2 (en) * 2002-11-20 2006-03-07 Scimed Life Systems, Inc. Medical instrument
US7022085B2 (en) * 2002-11-20 2006-04-04 Scimed Life Systems, Inc. Medical instrument
US7201722B2 (en) * 2000-04-18 2007-04-10 Allegiance Corporation Bone biopsy instrument having improved sample retention

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274414A (en) 1979-02-21 1981-06-23 Dyonics, Inc. Surgical instrument
SE456886B (en) 1986-02-19 1988-11-14 Radiplast Ab DEVICE FOR TAPE SAMPLING WITH A NATIONAL DISPENSER
IT1285597B1 (en) 1996-03-07 1998-06-18 Gallini Srl AUTOMATIC NEEDLE DEVICE FOR BIOPSY
US6106484A (en) 1998-05-12 2000-08-22 Medical Device Technologies, Inc. Reusable automated biopsy needle handle
US6402701B1 (en) 1999-03-23 2002-06-11 Fna Concepts, Llc Biopsy needle instrument
JP2001104313A (en) 1999-10-06 2001-04-17 Asahi Optical Co Ltd Organization sampling device for endoscope
US6358217B1 (en) 2000-01-31 2002-03-19 Hugh Bourassa Automatic and semi-automatic disposable biopsy needle device
JP2002000609A (en) 2000-06-23 2002-01-08 Tasuku:Kk Bioptic needle
US8137288B2 (en) 2002-11-20 2012-03-20 Boston Scientific Scimed, Inc. Medical instrument

Patent Citations (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272414A (en) * 1978-05-26 1981-06-09 Monsanto Company Chemical retardants for forest fires
US4844064A (en) * 1987-09-30 1989-07-04 Baxter Travenol Laboratories, Inc. Surgical cutting instrument with end and side openings
US4953558A (en) * 1987-11-19 1990-09-04 C. R. Bard, Inc. Tissue sampling device
US4924878A (en) * 1988-11-07 1990-05-15 Nottke James E Actuating mechanism for biopsy needle
US5368045A (en) * 1989-07-18 1994-11-29 Boston Scientific Corporation Biopsy needle instrument
US5476101A (en) * 1991-08-30 1995-12-19 M3 Systems Inc. Automatic tissue sampling apparatus
US5685852A (en) * 1992-03-30 1997-11-11 Symbiosis Corporation Needle assembly and methods useful for epidural anesthesia
US5195533A (en) * 1992-05-08 1993-03-23 Boston Scientific Corporation Biopsy needle instrument for storing multiple specimens
US5718237A (en) * 1993-11-15 1998-02-17 Haaga; John R. Biopsy needle
US6428486B2 (en) * 1994-03-24 2002-08-06 Ethicon Endo-Surgery, Inc. Methods and devices for automated biopsy and collection of soft tissue
US5507298A (en) * 1994-09-23 1996-04-16 M3 Systems, Inc., D/B/A/ Manan Medical Products, Inc. Forward-fired automatic tissue sampling apparatus
US5989196A (en) * 1994-10-31 1999-11-23 Boston Scientific Corporation Biopsy needle
US6126617A (en) * 1995-01-26 2000-10-03 Ascendia Ab Impact-damped biopsy instrument
US6293957B1 (en) * 1995-04-17 2001-09-25 Medtronic Xomed, Inc. Method of performing sinus surgery utilizing & sinus debrider instrument
US5660186A (en) * 1995-06-07 1997-08-26 Marshfield Clinic Spiral biopsy stylet
US5779647A (en) * 1995-06-07 1998-07-14 Chau; Sonny Automated biopsy instruments
US5842999A (en) * 1996-07-31 1998-12-01 C.R. Bard, Inc. Automated tissue sampling device
US5993399A (en) * 1996-07-31 1999-11-30 C.R. Bard, Inc. Automated tissue sampling device
US6142955A (en) * 1997-09-19 2000-11-07 United States Surgical Corporation Biopsy apparatus and method
US6050955A (en) * 1997-09-19 2000-04-18 United States Surgical Corporation Biopsy apparatus and method
US6033411A (en) * 1997-10-14 2000-03-07 Parallax Medical Inc. Precision depth guided instruments for use in vertebroplasty
US6544192B2 (en) * 1998-02-25 2003-04-08 Respironics, Inc. Patient monitor and method of using same
US6497706B1 (en) * 1998-03-03 2002-12-24 Senorx, Inc. Biopsy device and method of use
US6086543A (en) * 1998-06-24 2000-07-11 Rubicor Medical, Inc. Fine needle and core biopsy devices and methods
US6849080B2 (en) * 1998-09-03 2005-02-01 Rubicon Medical, Inc. Excisional biopsy device and methods
US6015391A (en) * 1998-10-06 2000-01-18 Medsol, Corp. Biopsy needle structure
US6221030B1 (en) * 1998-12-04 2001-04-24 Gallini S.R.L. Automatic biopsy device
US6165136A (en) * 1998-12-23 2000-12-26 Scimed Life Systems, Inc. Semi-automatic biopsy device and related method of use
US7201722B2 (en) * 2000-04-18 2007-04-10 Allegiance Corporation Bone biopsy instrument having improved sample retention
US6620111B2 (en) * 2001-04-20 2003-09-16 Ethicon Endo-Surgery, Inc. Surgical biopsy device having automatic rotation of the probe for taking multiple samples
US6730045B2 (en) * 2001-06-22 2004-05-04 Richard Finer Biopsy needle for continuous sample removal
US7449000B2 (en) * 2002-11-20 2008-11-11 Boston Scientific Scimed, Inc. Medical instrument
US7008382B2 (en) * 2002-11-20 2006-03-07 Scimed Life Systems, Inc. Medical instrument
US7022085B2 (en) * 2002-11-20 2006-04-04 Scimed Life Systems, Inc. Medical instrument

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8157862B2 (en) 1997-10-10 2012-04-17 Senorx, Inc. Tissue marking implant
US8668737B2 (en) 1997-10-10 2014-03-11 Senorx, Inc. Tissue marking implant
US9039763B2 (en) 1997-10-10 2015-05-26 Senorx, Inc. Tissue marking implant
US8219182B2 (en) 1999-02-02 2012-07-10 Senorx, Inc. Cavity-filling biopsy site markers
US9861294B2 (en) 1999-02-02 2018-01-09 Senorx, Inc. Marker delivery device with releasable plug
US9237937B2 (en) 1999-02-02 2016-01-19 Senorx, Inc. Cavity-filling biopsy site markers
US8626270B2 (en) 1999-02-02 2014-01-07 Senorx, Inc. Cavity-filling biopsy site markers
US8498693B2 (en) 1999-02-02 2013-07-30 Senorx, Inc. Intracorporeal marker and marker delivery device
US9149341B2 (en) 1999-02-02 2015-10-06 Senorx, Inc Deployment of polysaccharide markers for treating a site within a patient
US9044162B2 (en) 1999-02-02 2015-06-02 Senorx, Inc. Marker delivery device with releasable plug
US9820824B2 (en) 1999-02-02 2017-11-21 Senorx, Inc. Deployment of polysaccharide markers for treating a site within a patent
US8224424B2 (en) 1999-02-02 2012-07-17 Senorx, Inc. Tissue site markers for in vivo imaging
US9649093B2 (en) 1999-02-02 2017-05-16 Senorx, Inc. Cavity-filling biopsy site markers
US8361082B2 (en) 1999-02-02 2013-01-29 Senorx, Inc. Marker delivery device with releasable plug
US10172674B2 (en) 1999-02-02 2019-01-08 Senorx, Inc. Intracorporeal marker and marker delivery device
US8965486B2 (en) 1999-02-02 2015-02-24 Senorx, Inc. Cavity filling biopsy site markers
US8579931B2 (en) 1999-06-17 2013-11-12 Bard Peripheral Vascular, Inc. Apparatus for the percutaneous marking of a lesion
US8052708B2 (en) 1999-06-17 2011-11-08 Bard Peripheral Vascular, Inc. Apparatus for the percutaneous marking of a lesion
US9579159B2 (en) 1999-06-17 2017-02-28 Bard Peripheral Vascular, Inc. Apparatus for the percutaneous marking of a lesion
US10463446B2 (en) 1999-06-17 2019-11-05 Bard Peripheral Vascular, Inc. Apparatus for the percutaneous marking of a lesion
US8718745B2 (en) 2000-11-20 2014-05-06 Senorx, Inc. Tissue site markers for in vivo imaging
US8177792B2 (en) 2002-06-17 2012-05-15 Senorx, Inc. Plugged tip delivery tube for marker placement
US8784433B2 (en) 2002-06-17 2014-07-22 Senorx, Inc. Plugged tip delivery tube for marker placement
US10813716B2 (en) 2002-11-18 2020-10-27 Bard Peripheral Vascular, Inc. Self-contained, self-piercing, side-expelling marking apparatus
US9848956B2 (en) 2002-11-18 2017-12-26 Bard Peripheral Vascular, Inc. Self-contained, self-piercing, side-expelling marking apparatus
US20090069713A1 (en) * 2002-11-20 2009-03-12 Boston Scientific Scimed, Inc. Medical Instrument
US8088080B2 (en) * 2002-11-20 2012-01-03 Boston Scientific Scimed, Inc. Medical instrument
US8137288B2 (en) 2002-11-20 2012-03-20 Boston Scientific Scimed, Inc. Medical instrument
US8562543B2 (en) 2002-11-20 2013-10-22 Boston Scientific Scimed, Inc. Medical instrument
US9801688B2 (en) 2003-05-23 2017-10-31 Senorx, Inc. Fibrous marker and intracorporeal delivery thereof
US10045832B2 (en) 2003-05-23 2018-08-14 Senorx, Inc. Marker or filler forming fluid
US10299881B2 (en) 2003-05-23 2019-05-28 Senorx, Inc. Marker or filler forming fluid
US8447386B2 (en) 2003-05-23 2013-05-21 Senorx, Inc. Marker or filler forming fluid
US8639315B2 (en) 2003-05-23 2014-01-28 Senorx, Inc. Marker or filler forming fluid
US8880154B2 (en) 2003-05-23 2014-11-04 Senorx, Inc. Fibrous marker and intracorporeal delivery thereof
US8626269B2 (en) 2003-05-23 2014-01-07 Senorx, Inc. Fibrous marker and intracorporeal delivery thereof
US8634899B2 (en) 2003-11-17 2014-01-21 Bard Peripheral Vascular, Inc. Multi mode imaging marker
US7819820B2 (en) 2003-11-17 2010-10-26 Bard Peripheral Vascular, Inc. Self contained, self piercing, side-expelling marking apparatus
US8419656B2 (en) 2004-11-22 2013-04-16 Bard Peripheral Vascular, Inc. Post decompression marker introducer system
US10357328B2 (en) 2005-04-20 2019-07-23 Bard Peripheral Vascular, Inc. and Bard Shannon Limited Marking device with retractable cannula
US10342635B2 (en) 2005-04-20 2019-07-09 Bard Peripheral Vascular, Inc. Marking device with retractable cannula
US11278370B2 (en) 2005-04-20 2022-03-22 Bard Peripheral Vascular, Inc. Marking device with retractable cannula
US8486028B2 (en) 2005-10-07 2013-07-16 Bard Peripheral Vascular, Inc. Tissue marking apparatus having drug-eluting tissue marker
US8064987B2 (en) 2006-10-23 2011-11-22 C. R. Bard, Inc. Breast marker
US8437834B2 (en) 2006-10-23 2013-05-07 C. R. Bard, Inc. Breast marker
US11471244B2 (en) 2006-12-12 2022-10-18 C.R. Bard, Inc. Multiple imaging mode tissue marker
US9579077B2 (en) 2006-12-12 2017-02-28 C.R. Bard, Inc. Multiple imaging mode tissue marker
US9901415B2 (en) 2006-12-12 2018-02-27 C. R. Bard, Inc. Multiple imaging mode tissue marker
US10682200B2 (en) 2006-12-12 2020-06-16 C. R. Bard, Inc. Multiple imaging mode tissue marker
US9042965B2 (en) 2006-12-18 2015-05-26 C. R. Bard, Inc. Biopsy marker with in situ-generated imaging properties
US8401622B2 (en) 2006-12-18 2013-03-19 C. R. Bard, Inc. Biopsy marker with in situ-generated imaging properties
US8137287B2 (en) 2007-05-14 2012-03-20 Boston Scientific Scimed, Inc. Biopsy device
US20080287825A1 (en) * 2007-05-14 2008-11-20 Boston Scientific Scimed, Inc. Biopsy Device
US8311610B2 (en) 2008-01-31 2012-11-13 C. R. Bard, Inc. Biopsy tissue marker
US10786604B2 (en) 2008-09-23 2020-09-29 Senorx, Inc. Porous bioabsorbable implant
US9327061B2 (en) 2008-09-23 2016-05-03 Senorx, Inc. Porous bioabsorbable implant
US11833275B2 (en) 2008-09-23 2023-12-05 Senorx, Inc. Porous bioabsorbable implant
US8670818B2 (en) 2008-12-30 2014-03-11 C. R. Bard, Inc. Marker delivery device for tissue marker placement
US10258428B2 (en) 2008-12-30 2019-04-16 C. R. Bard, Inc. Marker delivery device for tissue marker placement
US11779431B2 (en) 2008-12-30 2023-10-10 C. R. Bard, Inc. Marker delivery device for tissue marker placement
USD715442S1 (en) 2013-09-24 2014-10-14 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
USD715942S1 (en) 2013-09-24 2014-10-21 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
USD716451S1 (en) 2013-09-24 2014-10-28 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
USD716450S1 (en) 2013-09-24 2014-10-28 C. R. Bard, Inc. Tissue marker for intracorporeal site identification
US20180256138A1 (en) * 2017-03-08 2018-09-13 Cyrillo Araujo Selectively extendable and retractable biopsy devices
US11406364B2 (en) * 2017-03-08 2022-08-09 Access Health, Llc Selectively extendable and retractable biopsy devices
US20220202400A1 (en) * 2020-12-30 2022-06-30 Medical Park Co., Ltd. Needle guide device for biopsy

Also Published As

Publication number Publication date
US8137288B2 (en) 2012-03-20

Similar Documents

Publication Publication Date Title
US8137288B2 (en) Medical instrument
EP1761158A1 (en) Biopsy needle instrument
US8523783B2 (en) Medical instrument
US7449000B2 (en) Medical instrument
US7329227B2 (en) Forward-fired automatic tissue sampling apparatus with safety lock
US5507298A (en) Forward-fired automatic tissue sampling apparatus
EP0536888B1 (en) Automatic tissue sampling apparatus
US5989196A (en) Biopsy needle
US4958625A (en) Biopsy needle instrument
WO2005055833A1 (en) Medical instrument
KR20120032490A (en) Biopsy device needle set
US11889997B2 (en) Biopsy instrument having outer needle-locking member
KR20220061068A (en) Core biopsy device
JPH04282145A (en) Biopsy needle device
US8337416B2 (en) Biopsy device

Legal Events

Date Code Title Description
AS Assignment

Owner name: BOSTON SCIENTIFIC SCIMED, INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COOKE, DAVID;BAYER, HANSPETER ROBERT;REEL/FRAME:021425/0657;SIGNING DATES FROM 20080613 TO 20080617

Owner name: BOSTON SCIENTIFIC SCIMED, INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COOKE, DAVID;BAYER, HANSPETER ROBERT;SIGNING DATES FROM 20080613 TO 20080617;REEL/FRAME:021425/0657

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY